Sash-lock.



E. fO. HARVEY.

SASH LOCK'.- lAlxfnmurlo'lw 'FILED MAR. 1o, um.

` 1, 104,99 1 'Patented July 28, 1914 NNE NOIIIN PETERS (1l. 1I'INTIJJJTNQ.. wSHINGTDN. Il C.

UNITED sTATEs -PATENT oEEIcE. g

EDsoN' o. HARVEY, oE BANonoFr, NEBRASKA.

sAsH-LocK.

To all whom t may concern.'

Be it known that I, EpsonV O. HARVEY, a citizen of the United States, residing at Bancroft, in the county of Cuming and State of Nebraska, have invented certain newv and useful Improvements in Sash- Iiocks, of which the following is a specifica# tion, reference being had to the accompanying drawings. e

This invention comprehends certain ynew and useful improvements vin sash locks, and has yfor its primary object to provide a sash lock adapted to lockv the sashes together in any desired position `and prevent rattling of the same. f

Another object of this invention is to provide a two-part sash lock of this character, one partof which is carried by the vupper sash while the other part is carried by the lower sash.

A further object is to provide a sash lock of this character, the pivoted locking lever of which is carried by a plate secured to the lower sash, and has va head formed on one end for engagement with the parts carried by the upper sash to securely lock together said sashes and prevent rattling of the same.

Another object is to generally improve and simplify the construction and operation of devices of this character and thereby increase the eiliciency and commercial value of the same.

With these and other objects in view, this invention consists in the novel details of construction, combination, formation and arrangement of parts as I shall hereinafter fully describe, point out in the claim and show in the drawings, in which- Figure 1 is a fragmentary view of a window with my improved sash locks applied thereto. Fig. 2 is a top plan view of one end of the upper rail of the lower sash,

- showing the lower sash member in full lines while the upper sash member and one side rail are shown in dotted lines. Fig. 3 Vis a rear elevational view at right angles to Fig. 2, showing the rear edge of the lower sash member positioned upon the upper rail of the lower sash. Fig. 4 is a front elevational view of a portion of one of the side rails of the upper sash, with the upper sash mem ber secured thereto. Fig. 5'is a slightly enlarged detail sectional view von the line 5*-5 of Fig. 4.

Referring more particularly to the drawings, in which similar reference characters Specification of Letters Patent. i

Patented July 28, 1914.

Application filed March 10, 1913. Serial No. 753,406.

designate corresponding parts ythroughout the several views, the numeral 1 designates the vertical plates carried by the upper sash and preferably embedded therein to permit the upper sash to slide freely, it being understood-that the plates 1 are carried by the side rails of the sash and in the forward or frontA faces thereof. Any number of posite ends and the center of said rails,

while the other side rail carries one plate 1 near it-slowerend. if e Each lplate 1 is provided with an inwardlydir-ected slot 3 extending inwardly' from its vinner `vert-ical edge L1, which edge t is beveled inwardly toward the slot 3, from the opposite ends of said edge, the purpose 'of which will presently appear. The plate 1 is also beveled upon its rear face toward 'the inner edge 4 tof provide a thin inner edge while the plate is of its l original thickness at the inner end of the slot 3.1 The purpose -of this construction will presently appear as the description pro- Upon the upper face of the top rail of the lower sash and at each end thereof, a plate 5 is secured by the screws 6, or any other suitable means, and a bell crank lever 7 is pivoted to the plate at the connections of the two arms,y of the bell crank by means of the 'pivot pin S. As the bell crank levers 7 are identical in construction and operation, only one of the bell cranks will be described in detail.

rIhe bell crank lever 7 carries upon the end of its short arm, the double head 9 which is connected to the end of the bell crank arm by the neck portion 10, and as the bell crank lever 17 is swung upon its pivot, by means of the knob 11 upon the end of the long'arm thereof, in one directi on, the double head 9 will engage against the cam portion of the rear face of the plate 1 at the mouth of the slot 3, and as the neck portion moves along the slot 3, the engagement of the double head 9 upon the cam portion of the rear face of the plate 1 will serve to draw the upper and lower sashes toward one another against the guide bead between the sashes, thus preventing rattling of the sashes. It will be evident that to unlock the sashes, it is simply necessary to grasp the knob ll and swing the bell crank lever 7 in an opposite direction upon its pivot S, thus withdrawing the neck portion l from within the slot 3 and the double head 9 from engagement with the rear face of the plate l. As movement of the bell crank lever 7 in one direction is limited by engagement of the neck port-ion 10 with the inner or end wall of the slot 3 and movement of said bell crank lever in the opposite direction is limited by engagement of the lower portion of the double head 9 with the rear edge of the plate 5, it will be seen that the bell crank lever has only a'limited movement, and when the double head and neck portions are out of engagement with the plate l, the bell crank lever is in such position that the double head and neck portions may be readily engaged with the plate l to lock together the upper and lower sections.

As the plates l are arranged in pairs, and two plates 5 and bell crank levers 7 are employed, both sides of the sashes may be securely locked together, and it will be apparent that the plates l may be arrangedv c at any suitablepoints along the side rails of the upper sash.

From the foregoing description, it will be apparent that I have provided sash locking means of extremely simple construction and operation, and while I have shown the preferred form of the device, it will be apparent that minor changes in the details of construction may be made wit-hin the scope of a plate having a cam portion provided with an inwardly directed slot, said plate being adapted to be positioned upon the upper sash of a window having a recess formed therein to accommodate the slotted Vcam portion of the plate; with a right angled lever, a plate adapted to be secured upon the lower window sash and having a rear stop edge, means for pivoting the lever upon the last mentioned plate at the junction of the right angled portion of said lever, a neck portion projecting from one end of the lever and adapted for removable engagement in the slot of the first mentioned plate, and a head formed upon the free end of the neck portion and adapted for engagement against the rear cam face of the iirst mentioned plate, movement of the4 lever in one direction being limited by engagement of the neck portion with the inner wall of the slot in said first mentioned plate while movement of said lever in the opposite direction is limited by engagement of the head with the rear stop edge of the second mentioned plate.

In testimony whereof I hereunto aix my signature in the presence of two witnesses.

FRED. A. VAirxf, J. H. PERKINS.

v Copies of this patent may be obtained for ve cents each, by'addressing the Commissioner of Patents, Washington, D. C. 

